US 12,378,742 B2
Unbalance exciter for vibratory plates
Florian Forstner, Rudelzhausen (DE); Tobias Müller, Margetshöchheim (DE); Walter Unverdorben, Markt Indersdorf (DE); and Lisa Weber, Seefeld (DE)
Assigned to Wacker Neuson Produktion GmbH & Co., Reichertshofen (DE)
Filed by Wacker Neuson Produktion GmbH & Co. KG, Reichertshofen (DE)
Filed on Jan. 28, 2022, as Appl. No. 17/587,435.
Claims priority of application No. 10 2021 102 346.7 (DE), filed on Feb. 2, 2021.
Prior Publication US 2022/0243416 A1, Aug. 4, 2022
Int. Cl. E02D 3/074 (2006.01); H02K 7/00 (2006.01); H02K 7/08 (2006.01); H02K 7/14 (2006.01); H02K 1/12 (2006.01)
CPC E02D 3/074 (2013.01) [H02K 7/003 (2013.01); H02K 7/08 (2013.01); H02K 7/14 (2013.01); H02K 1/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An unbalance exciter for a vibratory plate for ground compaction, comprising:
a rotatably mounted unbalance shaft, on which an unbalance mass is provided to generate an unbalance,
an exciter housing which at least partly surrounds the unbalance shaft, and
at least two bearing devices for rotatably mounting the unbalance shaft in the exciter housing; wherein the unbalance shaft has two bearing seats, on each of which one of two bearing devices are provided to support the unbalance shaft; wherein
the exciter housing has a central part;
the exciter housing has two end parts arranged at ends of the central part;
the central part has a hollow-cylindrical recess, in which two bearing points are provided, one for each of the two bearing devices;
the central part is designed to selectively and alternatively accommodate a first unbalance shaft according to a first unbalance shaft design for a first drive type during a first operation and a second unbalance shaft according to a second unbalance shaft design for a second drive type during a second operation;
the first unbalance shaft design includes the unbalance mass provided in a central installation spaced formed between the two bearings within the central part of the exciter housing; and
the second unbalance shaft design includes the unbalance mass provided outside the central installation space;
the first drive type is provided in which the unbalance exciter can be driven by an external drive device provided outside of the exciter housing of the unbalance exciter; and wherein
the second drive type is provided in which the unbalance exciter can be driven by an internal drive device provided inside of the exciter housing of the unbalance exciter.